I don't mind her being mad at him. I would be too because that was risking her life. Not knowing everything about herself isn't lying it's keeping information and she isn't risking anyone's safety by keeping that secret. What he did by not telling her about the monster pouch risked her safety and she asked for the truth so it's a big difference.
Now onto another point is in Chapter 12 when the monsters started coming the translator I laughed because you and I said the same thing "Like no really" We can't see the monsters coming without your input. Great job. Look forward to more.
I'm not annoyed by her but he I am annoyed by HOW THE HELL YOU GOING TO GET MAD AT HER WHEN YOU DIDN'T EXPLAIN YOUR FEELINGS! Shit, she even caught you shit-talking her with other coworkers. Then you bash her after having sex with her and then get mad when another guy touches her! MAKE UP YOUR FUCKING MIND! I knew he liked her but seriously everything he did to her made me want to shank him.